New MTN HEPA UV Ionic Ionizer Ozone Generator Air Purifier Carbon Filter Cleaner Portable and compact design, No Duct work Required Multi-function: Ozone + UV + Negative ION + HEPA + Pre-Filter + Photo-Catalytic Filter + Carbon Filter Low Maintenance and Low Electrical Usage, No Residual Contamination. ION output: 5 x 106cm3 (or2.5 x 106/cm3), UV Spectrum: 20w/cm2(at 10cm-distance) Sound Level (DB): Silent20/Low35/Med45/High50